The combination of Directrix and Generatrix in a machining operation is shown in the figure. The surface produced is 
The combination of Directrix and Generatrix in a machining operation is shown in the figure. The surface produced is
Show Hint
- cylindrical
- planar
- helical
- parabolic
The Correct Option is A
Solution and Explanation
- In this case, a cylindrical surface is generated when the generatrix moves along the directrix, which is a circular path.
Top Questions on Manufacturing Processes
- Group technology brings together and organizes:
- AP PGECET - 2025
- Mechanical Engineering
- Manufacturing Processes
- Which material is commonly used for pattern making?
- AP PGECET - 2025
- Mechanical Engineering
- Manufacturing Processes
- In metal cutting operations, discontinuous chips are produced while machining:
- AP PGECET - 2025
- Mechanical Engineering
- Manufacturing Processes
- In wire drawing operation, the maximum reduction per pass for perfectly plastic material in ideal condition is:
- AP PGECET - 2025
- Mechanical Engineering
- Manufacturing Processes
- CAD/CAM is hardware oriented, but gives it life.
- AP PGECET - 2025
- Mechanical Engineering
- Manufacturing Processes
Questions Asked in GATE PI exam
A through hole of 10 mm diameter is to be drilled in a mild steel plate of 30 mm thickness. The selected spindle speed and feed for drilling hole are 600 revolutions per minute (RPM) and 0.3 mm/rev, respectively. Take initial approach and breakthrough distances as 3 mm each. The total time (in minute) for drilling one hole is ______. (Rounded off to two decimal places)
- GATE PI - 2026
- Machining Processes and Machine Tools
In a cold rolling process without front and back tensions, the required minimum coefficient of friction is 0.04. Assume large rolls. If the draft is doubled and roll diameters are halved, then the required minimum coefficient of friction is ___________. (Rounded off to two decimal places)
- GATE PI - 2026
- Machining Processes and Machine Tools
- Which one of the following casting defects is caused due to the supply of the molten metal through two gates?
- GATE PI - 2026
- Machining Processes and Machine Tools
- The relationship between the hoop stress \(\sigma_1\) and the longitudinal stress \(\sigma_2\) of a closed cylindrical thin-walled pressure vessel is
- GATE PI - 2026
- Machining Processes and Machine Tools
- Three principal stresses at a point in a material are 300 MPa, 250 MPa, and 100 MPa. If the yielding just starts at that point, the yield strength (in MPa) of the material as per Tresca criterion is ............
Answer: The yield strength lies between 199 to 201 MPa.- GATE PI - 2025
- Industrial and Production